e94cb37b34
This module is heavily based on i2c-dev. Once loaded, it provides one dev node per DP AUX channel, named drm_dp_auxN, where N is an integer. It's possible to know which connector owns this aux channel by looking at the respective sysfs /sys/class/drm_aux_dev/drm_dp_auxN/connector, if the connector device pointer was correctly set in the aux helper struct. Two main operations are provided on the registers read and write. The address of the register to be read or written is given using lseek. The seek position is updated upon read or write. v2: - lseek is used to select the register to read/write - read/write are used instead of ioctl - no blocking_notifier is used, just a direct callback v3: - use drm_dp_aux_dev prefix for public functions - chardev is named drm_dp_auxN - read/write don't allocate a buffer anymore, and transfer up to 16 bytes a time - remove notifier list from the implementation - option on menuconfig is now a boolean - add inline stub functions to avoid breakage when this option is disabled v4: - fix build system changes - actually disable this module when not selected. v5: - Use kref to avoid device closing while still in use - Don't use list, use an idr for storing aux_dev - Remove "connector" attribute - set aux.dev to the connector drm_connector device, instead of drm_device v6: - Use atomic_t for usage count - Use a mutex instead of spinlock for idr lock - Destroy chardev immediately on unregister - other minor suggestions from Ville v7: - style fixes - error handling fixes v8: - more error handling fixes v9: - remove module_init and module_exit, and add drm_dp_aux_dev_init/exit to drm_kms_helper_init/exit. Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1453417821-2811-3-git-send-email-rafael.antognolli@intel.com
280 lines
7.4 KiB
Plaintext
280 lines
7.4 KiB
Plaintext
#
|
|
# Drm device configuration
|
|
#
|
|
# This driver provides support for the
|
|
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
|
|
#
|
|
menuconfig DRM
|
|
tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"
|
|
depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && MMU && HAS_DMA
|
|
select HDMI
|
|
select FB_CMDLINE
|
|
select I2C
|
|
select I2C_ALGOBIT
|
|
select DMA_SHARED_BUFFER
|
|
help
|
|
Kernel-level support for the Direct Rendering Infrastructure (DRI)
|
|
introduced in XFree86 4.0. If you say Y here, you need to select
|
|
the module that's right for your graphics card from the list below.
|
|
These modules provide support for synchronization, security, and
|
|
DMA transfers. Please see <http://dri.sourceforge.net/> for more
|
|
details. You should also select and configure AGP
|
|
(/dev/agpgart) support if it is available for your platform.
|
|
|
|
config DRM_MIPI_DSI
|
|
bool
|
|
depends on DRM
|
|
|
|
config DRM_DP_AUX_CHARDEV
|
|
bool "DRM DP AUX Interface"
|
|
depends on DRM
|
|
help
|
|
Choose this option to enable a /dev/drm_dp_auxN node that allows to
|
|
read and write values to arbitrary DPCD registers on the DP aux
|
|
channel.
|
|
|
|
config DRM_KMS_HELPER
|
|
tristate
|
|
depends on DRM
|
|
help
|
|
CRTC helpers for KMS drivers.
|
|
|
|
config DRM_KMS_FB_HELPER
|
|
bool
|
|
depends on DRM_KMS_HELPER
|
|
select FB
|
|
select FRAMEBUFFER_CONSOLE if !EXPERT
|
|
select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
|
|
select FB_SYS_FOPS
|
|
select FB_SYS_FILLRECT
|
|
select FB_SYS_COPYAREA
|
|
select FB_SYS_IMAGEBLIT
|
|
select FB_CFB_FILLRECT
|
|
select FB_CFB_COPYAREA
|
|
select FB_CFB_IMAGEBLIT
|
|
help
|
|
FBDEV helpers for KMS drivers.
|
|
|
|
config DRM_FBDEV_EMULATION
|
|
bool "Enable legacy fbdev support for your modesetting driver"
|
|
depends on DRM
|
|
select DRM_KMS_HELPER
|
|
select DRM_KMS_FB_HELPER
|
|
default y
|
|
help
|
|
Choose this option if you have a need for the legacy fbdev
|
|
support. Note that this support also provides the linux console
|
|
support on top of your modesetting driver.
|
|
|
|
If in doubt, say "Y".
|
|
|
|
config DRM_LOAD_EDID_FIRMWARE
|
|
bool "Allow to specify an EDID data set instead of probing for it"
|
|
depends on DRM_KMS_HELPER
|
|
help
|
|
Say Y here, if you want to use EDID data to be loaded from the
|
|
/lib/firmware directory or one of the provided built-in
|
|
data sets. This may be necessary, if the graphics adapter or
|
|
monitor are unable to provide appropriate EDID data. Since this
|
|
feature is provided as a workaround for broken hardware, the
|
|
default case is N. Details and instructions how to build your own
|
|
EDID data are given in Documentation/EDID/HOWTO.txt.
|
|
|
|
config DRM_TTM
|
|
tristate
|
|
depends on DRM
|
|
help
|
|
GPU memory management subsystem for devices with multiple
|
|
GPU memory types. Will be enabled automatically if a device driver
|
|
uses it.
|
|
|
|
config DRM_GEM_CMA_HELPER
|
|
bool
|
|
depends on DRM
|
|
help
|
|
Choose this if you need the GEM CMA helper functions
|
|
|
|
config DRM_KMS_CMA_HELPER
|
|
bool
|
|
depends on DRM
|
|
select DRM_GEM_CMA_HELPER
|
|
select DRM_KMS_FB_HELPER
|
|
select FB_SYS_FILLRECT
|
|
select FB_SYS_COPYAREA
|
|
select FB_SYS_IMAGEBLIT
|
|
help
|
|
Choose this if you need the KMS CMA helper functions
|
|
|
|
source "drivers/gpu/drm/i2c/Kconfig"
|
|
|
|
config DRM_TDFX
|
|
tristate "3dfx Banshee/Voodoo3+"
|
|
depends on DRM && PCI
|
|
help
|
|
Choose this option if you have a 3dfx Banshee or Voodoo3 (or later),
|
|
graphics card. If M is selected, the module will be called tdfx.
|
|
|
|
config DRM_R128
|
|
tristate "ATI Rage 128"
|
|
depends on DRM && PCI
|
|
select FW_LOADER
|
|
help
|
|
Choose this option if you have an ATI Rage 128 graphics card. If M
|
|
is selected, the module will be called r128. AGP support for
|
|
this card is strongly suggested (unless you have a PCI version).
|
|
|
|
config DRM_RADEON
|
|
tristate "ATI Radeon"
|
|
depends on DRM && PCI
|
|
select FB_CFB_FILLRECT
|
|
select FB_CFB_COPYAREA
|
|
select FB_CFB_IMAGEBLIT
|
|
select FW_LOADER
|
|
select DRM_KMS_HELPER
|
|
select DRM_KMS_FB_HELPER
|
|
select DRM_TTM
|
|
select POWER_SUPPLY
|
|
select HWMON
|
|
select BACKLIGHT_CLASS_DEVICE
|
|
select BACKLIGHT_LCD_SUPPORT
|
|
select INTERVAL_TREE
|
|
help
|
|
Choose this option if you have an ATI Radeon graphics card. There
|
|
are both PCI and AGP versions. You don't need to choose this to
|
|
run the Radeon in plain VGA mode.
|
|
|
|
If M is selected, the module will be called radeon.
|
|
|
|
source "drivers/gpu/drm/radeon/Kconfig"
|
|
|
|
config DRM_AMDGPU
|
|
tristate "AMD GPU"
|
|
depends on DRM && PCI
|
|
select FB_CFB_FILLRECT
|
|
select FB_CFB_COPYAREA
|
|
select FB_CFB_IMAGEBLIT
|
|
select FW_LOADER
|
|
select DRM_KMS_HELPER
|
|
select DRM_KMS_FB_HELPER
|
|
select DRM_TTM
|
|
select POWER_SUPPLY
|
|
select HWMON
|
|
select BACKLIGHT_CLASS_DEVICE
|
|
select BACKLIGHT_LCD_SUPPORT
|
|
select INTERVAL_TREE
|
|
help
|
|
Choose this option if you have a recent AMD Radeon graphics card.
|
|
|
|
If M is selected, the module will be called amdgpu.
|
|
|
|
source "drivers/gpu/drm/amd/amdgpu/Kconfig"
|
|
source "drivers/gpu/drm/amd/powerplay/Kconfig"
|
|
|
|
source "drivers/gpu/drm/nouveau/Kconfig"
|
|
|
|
config DRM_I810
|
|
tristate "Intel I810"
|
|
# !PREEMPT because of missing ioctl locking
|
|
depends on DRM && AGP && AGP_INTEL && (!PREEMPT || BROKEN)
|
|
help
|
|
Choose this option if you have an Intel I810 graphics card. If M is
|
|
selected, the module will be called i810. AGP support is required
|
|
for this driver to work.
|
|
|
|
source "drivers/gpu/drm/i915/Kconfig"
|
|
|
|
config DRM_MGA
|
|
tristate "Matrox g200/g400"
|
|
depends on DRM && PCI
|
|
select FW_LOADER
|
|
help
|
|
Choose this option if you have a Matrox G200, G400 or G450 graphics
|
|
card. If M is selected, the module will be called mga. AGP
|
|
support is required for this driver to work.
|
|
|
|
config DRM_SIS
|
|
tristate "SiS video cards"
|
|
depends on DRM && AGP
|
|
depends on FB_SIS || FB_SIS=n
|
|
help
|
|
Choose this option if you have a SiS 630 or compatible video
|
|
chipset. If M is selected the module will be called sis. AGP
|
|
support is required for this driver to work.
|
|
|
|
config DRM_VIA
|
|
tristate "Via unichrome video cards"
|
|
depends on DRM && PCI
|
|
help
|
|
Choose this option if you have a Via unichrome or compatible video
|
|
chipset. If M is selected the module will be called via.
|
|
|
|
config DRM_SAVAGE
|
|
tristate "Savage video cards"
|
|
depends on DRM && PCI
|
|
help
|
|
Choose this option if you have a Savage3D/4/SuperSavage/Pro/Twister
|
|
chipset. If M is selected the module will be called savage.
|
|
|
|
config DRM_VGEM
|
|
tristate "Virtual GEM provider"
|
|
depends on DRM
|
|
help
|
|
Choose this option to get a virtual graphics memory manager,
|
|
as used by Mesa's software renderer for enhanced performance.
|
|
If M is selected the module will be called vgem.
|
|
|
|
|
|
source "drivers/gpu/drm/exynos/Kconfig"
|
|
|
|
source "drivers/gpu/drm/rockchip/Kconfig"
|
|
|
|
source "drivers/gpu/drm/vmwgfx/Kconfig"
|
|
|
|
source "drivers/gpu/drm/gma500/Kconfig"
|
|
|
|
source "drivers/gpu/drm/udl/Kconfig"
|
|
|
|
source "drivers/gpu/drm/ast/Kconfig"
|
|
|
|
source "drivers/gpu/drm/mgag200/Kconfig"
|
|
|
|
source "drivers/gpu/drm/cirrus/Kconfig"
|
|
|
|
source "drivers/gpu/drm/armada/Kconfig"
|
|
|
|
source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
|
|
|
|
source "drivers/gpu/drm/rcar-du/Kconfig"
|
|
|
|
source "drivers/gpu/drm/shmobile/Kconfig"
|
|
|
|
source "drivers/gpu/drm/omapdrm/Kconfig"
|
|
|
|
source "drivers/gpu/drm/tilcdc/Kconfig"
|
|
|
|
source "drivers/gpu/drm/qxl/Kconfig"
|
|
|
|
source "drivers/gpu/drm/bochs/Kconfig"
|
|
|
|
source "drivers/gpu/drm/virtio/Kconfig"
|
|
|
|
source "drivers/gpu/drm/msm/Kconfig"
|
|
|
|
source "drivers/gpu/drm/fsl-dcu/Kconfig"
|
|
|
|
source "drivers/gpu/drm/tegra/Kconfig"
|
|
|
|
source "drivers/gpu/drm/panel/Kconfig"
|
|
|
|
source "drivers/gpu/drm/bridge/Kconfig"
|
|
|
|
source "drivers/gpu/drm/sti/Kconfig"
|
|
|
|
source "drivers/gpu/drm/amd/amdkfd/Kconfig"
|
|
|
|
source "drivers/gpu/drm/imx/Kconfig"
|
|
|
|
source "drivers/gpu/drm/vc4/Kconfig"
|
|
|
|
source "drivers/gpu/drm/etnaviv/Kconfig"
|